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One-byte-opcodes

X86-mov-op/en-td

Signature
(x86-mov-op/en-td proc-mode start-rip temp-rip prefixes rex-byte opcode modr/m sib x86) → x86
Returns: x86 — Type (x86p x86), given (x86p x86).

Definitions and Theorems

Function: x86-mov-op/en-td

(defun x86-mov-op/en-td
       (proc-mode start-rip temp-rip
                  prefixes rex-byte opcode modr/m sib x86)
 (declare (xargs :stobjs (x86)))
 (declare (type (integer 0 4) proc-mode)
          (type (signed-byte 48) start-rip)
          (type (signed-byte 48) temp-rip)
          (type (unsigned-byte 52) prefixes)
          (type (unsigned-byte 8) rex-byte)
          (type (unsigned-byte 8) opcode)
          (type (unsigned-byte 8) modr/m)
          (type (unsigned-byte 8) sib))
 (declare (ignorable proc-mode start-rip temp-rip
                     prefixes rex-byte opcode modr/m sib))
 (declare (xargs :guard (and (prefixes-p prefixes)
                             (modr/m-p modr/m)
                             (sib-p sib)
                             (rip-guard-okp proc-mode temp-rip))))
 (let ((__function__ 'x86-mov-op/en-td))
  (declare (ignorable __function__))
  (b* ((?ctx 'x86-mov-op/en-td))
   (b*
    ((p2 (prefixes->seg prefixes))
     (p4? (equal 103 (prefixes->adr prefixes)))
     (byte-operand? (eql opcode 162))
     ((the (integer 1 8) operand-size)
      (select-operand-size proc-mode byte-operand?
                           rex-byte nil prefixes nil nil nil x86))
     ((the (integer 1 8) offset-size)
      (select-address-size proc-mode p4? x86))
     ((mv flg offset x86)
      (rime-size-opt proc-mode
                     offset-size temp-rip 1 :x nil x86))
     ((when flg)
      (!!ms-fresh :rime-size-error flg))
     ((mv flg (the (signed-byte 48) temp-rip))
      (add-to-*ip proc-mode temp-rip offset-size x86))
     ((when flg)
      (!!ms-fresh :rip-increment-error temp-rip))
     (badlength? (check-instruction-length start-rip temp-rip 0))
     ((when badlength?)
      (!!fault-fresh :gp 0
                     :instruction-length badlength?))
     (seg-reg
          (select-segment-register proc-mode p2 p4? 0 0 sib x86))
     (data (rgfi-size operand-size *rax* rex-byte x86))
     (inst-ac? t)
     ((mv flg x86)
      (x86-operand-to-reg/mem proc-mode operand-size inst-ac? nil
                              data seg-reg offset rex-byte 0 0 x86))
     ((when flg)
      (!!ms-fresh :x86-operand-to-reg/mem flg))
     (x86 (write-*ip proc-mode temp-rip x86)))
    x86))))

Theorem: x86p-of-x86-mov-op/en-td

(defthm x86p-of-x86-mov-op/en-td
 (implies
   (x86p x86)
   (b* ((x86 (x86-mov-op/en-td proc-mode start-rip temp-rip prefixes
                               rex-byte opcode modr/m sib x86)))
     (x86p x86)))
 :rule-classes :rewrite)